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Diffstat (limited to 'xorg-server/glx/glxscreens.c')
| -rw-r--r-- | xorg-server/glx/glxscreens.c | 604 |
1 files changed, 604 insertions, 0 deletions
diff --git a/xorg-server/glx/glxscreens.c b/xorg-server/glx/glxscreens.c new file mode 100644 index 000000000..f4839b32c --- /dev/null +++ b/xorg-server/glx/glxscreens.c @@ -0,0 +1,604 @@ +/* +** License Applicability. Except to the extent portions of this file are +** made subject to an alternative license as permitted in the SGI Free +** Software License B, Version 1.1 (the "License"), the contents of this +** file are subject only to the provisions of the License. You may not use +** this file except in compliance with the License. You may obtain a copy +** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +** +** http://oss.sgi.com/projects/FreeB +** +** Note that, as provided in the License, the Software is distributed on an +** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +** +** Original Code. The Original Code is: OpenGL Sample Implementation, +** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +** Copyright in any portions created by third parties is as indicated +** elsewhere herein. All Rights Reserved. +** +** Additional Notice Provisions: The application programming interfaces +** established by SGI in conjunction with the Original Code are The +** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +** Window System(R) (Version 1.3), released October 19, 1998. This software +** was created using the OpenGL(R) version 1.2.1 Sample Implementation +** published by SGI, but has not been independently verified as being +** compliant with the OpenGL(R) version 1.2.1 Specification. +** +*/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <GL/glxtokens.h> +#include <string.h> +#include <windowstr.h> +#include <os.h> +#include <colormapst.h> + +#include "privates.h" +#include "glxserver.h" +#include "glxutil.h" +#include "glxext.h" + +static DevPrivateKey glxScreenPrivateKey = &glxScreenPrivateKey; + +const char GLServerVersion[] = "1.4"; +static const char GLServerExtensions[] = + "GL_ARB_depth_texture " + "GL_ARB_draw_buffers " + "GL_ARB_fragment_program " + "GL_ARB_fragment_program_shadow " + "GL_ARB_imaging " + "GL_ARB_multisample " + "GL_ARB_multitexture " + "GL_ARB_occlusion_query " + "GL_ARB_point_parameters " + "GL_ARB_point_sprite " + "GL_ARB_shadow " + "GL_ARB_shadow_ambient " + "GL_ARB_texture_border_clamp " + "GL_ARB_texture_compression " + "GL_ARB_texture_cube_map " + "GL_ARB_texture_env_add " + "GL_ARB_texture_env_combine " + "GL_ARB_texture_env_crossbar " + "GL_ARB_texture_env_dot3 " + "GL_ARB_texture_mirrored_repeat " + "GL_ARB_texture_non_power_of_two " + "GL_ARB_transpose_matrix " + "GL_ARB_vertex_program " + "GL_ARB_window_pos " + "GL_EXT_abgr " + "GL_EXT_bgra " + "GL_EXT_blend_color " + "GL_EXT_blend_equation_separate " + "GL_EXT_blend_func_separate " + "GL_EXT_blend_logic_op " + "GL_EXT_blend_minmax " + "GL_EXT_blend_subtract " + "GL_EXT_clip_volume_hint " + "GL_EXT_copy_texture " + "GL_EXT_draw_range_elements " + "GL_EXT_fog_coord " + "GL_EXT_framebuffer_object " + "GL_EXT_multi_draw_arrays " + "GL_EXT_packed_pixels " + "GL_EXT_paletted_texture " + "GL_EXT_point_parameters " + "GL_EXT_polygon_offset " + "GL_EXT_rescale_normal " + "GL_EXT_secondary_color " + "GL_EXT_separate_specular_color " + "GL_EXT_shadow_funcs " + "GL_EXT_shared_texture_palette " + "GL_EXT_stencil_two_side " + "GL_EXT_stencil_wrap " + "GL_EXT_subtexture " + "GL_EXT_texture " + "GL_EXT_texture3D " + "GL_EXT_texture_compression_dxt1 " + "GL_EXT_texture_compression_s3tc " + "GL_EXT_texture_edge_clamp " + "GL_EXT_texture_env_add " + "GL_EXT_texture_env_combine " + "GL_EXT_texture_env_dot3 " + "GL_EXT_texture_filter_anisotropic " + "GL_EXT_texture_lod " + "GL_EXT_texture_lod_bias " + "GL_EXT_texture_mirror_clamp " + "GL_EXT_texture_object " + "GL_EXT_texture_rectangle " + "GL_EXT_vertex_array " + "GL_3DFX_texture_compression_FXT1 " + "GL_APPLE_packed_pixels " + "GL_ATI_draw_buffers " + "GL_ATI_texture_env_combine3 " + "GL_ATI_texture_mirror_once " + "GL_HP_occlusion_test " + "GL_IBM_texture_mirrored_repeat " + "GL_INGR_blend_func_separate " + "GL_MESA_pack_invert " + "GL_MESA_ycbcr_texture " + "GL_NV_blend_square " + "GL_NV_depth_clamp " + "GL_NV_fog_distance " + "GL_NV_fragment_program " + "GL_NV_fragment_program_option " + "GL_NV_fragment_program2 " + "GL_NV_light_max_exponent " + "GL_NV_multisample_filter_hint " + "GL_NV_point_sprite " + "GL_NV_texgen_reflection " + "GL_NV_texture_compression_vtc " + "GL_NV_texture_env_combine4 " + "GL_NV_texture_expand_normal " + "GL_NV_texture_rectangle " + "GL_NV_vertex_program " + "GL_NV_vertex_program1_1 " + "GL_NV_vertex_program2 " + "GL_NV_vertex_program2_option " + "GL_NV_vertex_program3 " + "GL_OES_compressed_paletted_texture " + "GL_SGI_color_matrix " + "GL_SGI_color_table " + "GL_SGIS_generate_mipmap " + "GL_SGIS_multisample " + "GL_SGIS_point_parameters " + "GL_SGIS_texture_border_clamp " + "GL_SGIS_texture_edge_clamp " + "GL_SGIS_texture_lod " + "GL_SGIX_depth_texture " + "GL_SGIX_shadow " + "GL_SGIX_shadow_ambient " + "GL_SUN_slice_accum " + ; + +/* +** We have made the simplifying assuption that the same extensions are +** supported across all screens in a multi-screen system. +*/ +static char GLXServerVendorName[] = "SGI"; +static char GLXServerVersion[] = "1.2"; +static char GLXServerExtensions[] = + "GLX_ARB_multisample " + "GLX_EXT_visual_info " + "GLX_EXT_visual_rating " + "GLX_EXT_import_context " + "GLX_EXT_texture_from_pixmap " + "GLX_OML_swap_method " + "GLX_SGI_make_current_read " +#ifndef __APPLE__ + "GLX_SGIS_multisample " + "GLX_SGIX_hyperpipe " + "GLX_SGIX_swap_barrier " +#endif + "GLX_SGIX_fbconfig " + "GLX_MESA_copy_sub_buffer " + ; + +/* +** This hook gets called when a window moves or changes size. +*/ +static Bool glxPositionWindow(WindowPtr pWin, int x, int y) +{ + ScreenPtr pScreen; + __GLXdrawable *glxPriv; + Bool ret; + __GLXscreen *pGlxScreen; + + /* + ** Call wrapped position window routine + */ + pScreen = pWin->drawable.pScreen; + pGlxScreen = glxGetScreen(pScreen); + pScreen->PositionWindow = pGlxScreen->PositionWindow; + ret = (*pScreen->PositionWindow)(pWin, x, y); + pScreen->PositionWindow = glxPositionWindow; + + /* + ** Tell all contexts rendering into this window that the window size + ** has changed. + */ + glxPriv = (__GLXdrawable *) LookupIDByType(pWin->drawable.id, + __glXDrawableRes); + if (glxPriv == NULL) { + /* + ** This window is not being used by the OpenGL. + */ + return ret; + } + + /* + ** resize the drawable + */ + /* first change the drawable size */ + if (glxPriv->resize(glxPriv) == GL_FALSE) { + /* resize failed! */ + /* XXX: what can we possibly do here? */ + ret = False; + } + + return ret; +} + +/* + * If your DDX driver wants to register support for swap barriers or hyperpipe + * topology, it should call __glXHyperpipeInit() or __glXSwapBarrierInit() + * with a dispatch table of functions to handle the requests. In the XFree86 + * DDX, for example, you would call these near the bottom of the driver's + * ScreenInit method, after DRI has been initialized. + * + * This should be replaced with a better method when we teach the server how + * to load DRI drivers. + */ + +void __glXHyperpipeInit(int screen, __GLXHyperpipeExtensionFuncs *funcs) +{ + __GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]); + + pGlxScreen->hyperpipeFuncs = funcs; +} + +void __glXSwapBarrierInit(int screen, __GLXSwapBarrierExtensionFuncs *funcs) +{ + __GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]); + + pGlxScreen->swapBarrierFuncs = funcs; +} + +static Bool +glxCloseScreen (int index, ScreenPtr pScreen) +{ + __GLXscreen *pGlxScreen = glxGetScreen(pScreen); + + pScreen->CloseScreen = pGlxScreen->CloseScreen; + pScreen->PositionWindow = pGlxScreen->PositionWindow; + + pGlxScreen->destroy(pGlxScreen); + + return pScreen->CloseScreen(index, pScreen); +} + +__GLXscreen * +glxGetScreen(ScreenPtr pScreen) +{ + return dixLookupPrivate(&pScreen->devPrivates, glxScreenPrivateKey); +} + +void GlxSetVisualConfigs(int nconfigs, + __GLXvisualConfig *configs, void **privates) +{ + /* We keep this stub around for the DDX drivers that still + * call it. */ +} + +GLint glxConvertToXVisualType(int visualType) +{ + static const int x_visual_types[] = { + TrueColor, DirectColor, + PseudoColor, StaticColor, + GrayScale, StaticGray + }; + + return ( (unsigned) (visualType - GLX_TRUE_COLOR) < 6 ) + ? x_visual_types[ visualType - GLX_TRUE_COLOR ] : -1; +} + + +static void +filterOutNativeConfigs(__GLXscreen *pGlxScreen) +{ + __GLXconfig *m, *next, **last; + ScreenPtr pScreen = pGlxScreen->pScreen; + int i, depth; + + last = &pGlxScreen->fbconfigs; + for (m = pGlxScreen->fbconfigs; m != NULL; m = next) { + next = m->next; + depth = m->redBits + m->blueBits + m->greenBits; + + for (i = 0; i < pScreen->numVisuals; i++) { + if (pScreen->visuals[i].nplanes == depth) { + *last = m; + last = &m->next; + break; + } + } + } + + *last = NULL; +} + +static XID +findVisualForConfig(ScreenPtr pScreen, __GLXconfig *m) +{ + int i; + + for (i = 0; i < pScreen->numVisuals; i++) { + if (glxConvertToXVisualType(m->visualType) == pScreen->visuals[i].class) + return pScreen->visuals[i].vid; + } + + return 0; +} + +/* This code inspired by composite/compinit.c. We could move this to + * mi/ and share it with composite.*/ + +static VisualPtr +AddScreenVisuals(ScreenPtr pScreen, int count, int d) +{ + XID *installedCmaps, *vids, vid; + int numInstalledCmaps, numVisuals, i, j; + VisualPtr visuals; + ColormapPtr installedCmap; + DepthPtr depth; + + depth = NULL; + for (i = 0; i < pScreen->numDepths; i++) { + if (pScreen->allowedDepths[i].depth == d) { + depth = &pScreen->allowedDepths[i]; + break; + } + } + if (depth == NULL) + return NULL; + + /* Find the installed colormaps */ + installedCmaps = xalloc (pScreen->maxInstalledCmaps * sizeof (XID)); + if (!installedCmaps) + return NULL; + + numInstalledCmaps = pScreen->ListInstalledColormaps(pScreen, installedCmaps); + + /* realloc the visual array to fit the new one in place */ + numVisuals = pScreen->numVisuals; + visuals = xrealloc(pScreen->visuals, (numVisuals + count) * sizeof(VisualRec)); + if (!visuals) { + xfree(installedCmaps); + return NULL; + } + + vids = xrealloc(depth->vids, (depth->numVids + count) * sizeof(XID)); + if (vids == NULL) { + xfree(installedCmaps); + xfree(visuals); + return NULL; + } + + /* + * Fix up any existing installed colormaps -- we'll assume that + * the only ones created so far have been installed. If this + * isn't true, we'll have to walk the resource database looking + * for all colormaps. + */ + for (i = 0; i < numInstalledCmaps; i++) { + installedCmap = LookupIDByType (installedCmaps[i], RT_COLORMAP); + if (!installedCmap) + continue; + j = installedCmap->pVisual - pScreen->visuals; + installedCmap->pVisual = &visuals[j]; + } + + xfree(installedCmaps); + + for (i = 0; i < count; i++) { + vid = FakeClientID(0); + visuals[pScreen->numVisuals + i].vid = vid; + vids[depth->numVids + i] = vid; + } + + pScreen->visuals = visuals; + pScreen->numVisuals += count; + depth->vids = vids; + depth->numVids += count; + + /* Return a pointer to the first of the added visuals. */ + return pScreen->visuals + pScreen->numVisuals - count; +} + +static int +findFirstSet(unsigned int v) +{ + int i; + + for (i = 0; i < 32; i++) + if (v & (1 << i)) + return i; + + return -1; +} + +static void +initGlxVisual(VisualPtr visual, __GLXconfig *config) +{ + int maxBits; + maxBits = max(config->redBits, max(config->greenBits, config->blueBits)); + + config->visualID = visual->vid; + visual->class = glxConvertToXVisualType(config->visualType); + visual->bitsPerRGBValue = maxBits; + visual->ColormapEntries = 1 << maxBits; + visual->nplanes = config->redBits + config->greenBits + config->blueBits; + + visual->redMask = config->redMask; + visual->greenMask = config->greenMask; + visual->blueMask = config->blueMask; + visual->offsetRed = findFirstSet(config->redMask); + visual->offsetGreen = findFirstSet(config->greenMask); + visual->offsetBlue = findFirstSet(config->blueMask); +} + +typedef struct { + GLboolean doubleBuffer; + GLboolean depthBuffer; + GLboolean stencilBuffer; +} FBConfigTemplateRec, *FBConfigTemplatePtr; + +static __GLXconfig * +pickFBConfig(__GLXscreen *pGlxScreen, FBConfigTemplatePtr template, int class) +{ + __GLXconfig *config; + + for (config = pGlxScreen->fbconfigs; config != NULL; config = config->next) { + if (config->visualRating != GLX_NONE) + continue; + if (glxConvertToXVisualType(config->visualType) != class) + continue; + if ((config->doubleBufferMode > 0) != template->doubleBuffer) + continue; + if ((config->depthBits > 0) != template->depthBuffer) + continue; + if ((config->stencilBits > 0) != template->stencilBuffer) + continue; + + return config; + } + + return NULL; +} + +static void +addMinimalSet(__GLXscreen *pGlxScreen) +{ + __GLXconfig *config; + VisualPtr visuals; + int i, j; + FBConfigTemplateRec best = { GL_TRUE, GL_TRUE, GL_TRUE }; + FBConfigTemplateRec good = { GL_TRUE, GL_TRUE, GL_FALSE }; + FBConfigTemplateRec minimal = { GL_FALSE, GL_FALSE, GL_FALSE }; + + pGlxScreen->visuals = xcalloc(pGlxScreen->pScreen->numVisuals, + sizeof (__GLXconfig *)); + if (pGlxScreen->visuals == NULL) { + ErrorF("Failed to allocate for minimal set of GLX visuals\n"); + return; + } + + visuals = pGlxScreen->pScreen->visuals; + for (i = 0, j = 0; i < pGlxScreen->pScreen->numVisuals; i++) { + if (visuals[i].nplanes == 32) + config = pickFBConfig(pGlxScreen, &minimal, visuals[i].class); + else { + config = pickFBConfig(pGlxScreen, &best, visuals[i].class); + if (config == NULL) + config = pickFBConfig(pGlxScreen, &good, visuals[i].class); + } + if (config == NULL) + config = pGlxScreen->fbconfigs; + if (config == NULL) + continue; + + pGlxScreen->visuals[j] = config; + config->visualID = visuals[i].vid; + j++; + } + + pGlxScreen->numVisuals = j; +} + +static void +addTypicalSet(__GLXscreen *pGlxScreen) +{ + addMinimalSet(pGlxScreen); +} + +static void +addFullSet(__GLXscreen *pGlxScreen) +{ + __GLXconfig *config; + VisualPtr visuals; + int i, depth; + + pGlxScreen->visuals = + xcalloc(pGlxScreen->numFBConfigs, sizeof (__GLXconfig *)); + if (pGlxScreen->visuals == NULL) { + ErrorF("Failed to allocate for full set of GLX visuals\n"); + return; + } + + config = pGlxScreen->fbconfigs; + depth = config->redBits + config->greenBits + config->blueBits; + visuals = AddScreenVisuals(pGlxScreen->pScreen, pGlxScreen->numFBConfigs, depth); + if (visuals == NULL) { + xfree(pGlxScreen->visuals); + return; + } + + pGlxScreen->numVisuals = pGlxScreen->numFBConfigs; + for (i = 0, config = pGlxScreen->fbconfigs; config; config = config->next, i++) { + pGlxScreen->visuals[i] = config; + initGlxVisual(&visuals[i], config); + } +} + +static int glxVisualConfig = GLX_ALL_VISUALS; + +void GlxSetVisualConfig(int config) +{ + glxVisualConfig = config; +} + +void __glXScreenInit(__GLXscreen *pGlxScreen, ScreenPtr pScreen) +{ + __GLXconfig *m; + int i; + + pGlxScreen->pScreen = pScreen; + pGlxScreen->GLextensions = xstrdup(GLServerExtensions); + pGlxScreen->GLXvendor = xstrdup(GLXServerVendorName); + pGlxScreen->GLXversion = xstrdup(GLXServerVersion); + pGlxScreen->GLXextensions = xstrdup(GLXServerExtensions); + + pGlxScreen->PositionWindow = pScreen->PositionWindow; + pScreen->PositionWindow = glxPositionWindow; + + pGlxScreen->CloseScreen = pScreen->CloseScreen; + pScreen->CloseScreen = glxCloseScreen; + + filterOutNativeConfigs(pGlxScreen); + + i = 0; + for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) { + m->fbconfigID = FakeClientID(0); + m->visualID = findVisualForConfig(pScreen, m); + i++; + } + pGlxScreen->numFBConfigs = i; + + /* Select a subset of fbconfigs that we send to the client when it + * asks for the glx visuals. All the fbconfigs here have a valid + * value for visual ID and each visual ID is only present once. + * This runs before composite adds its extra visual so we have to + * remember the number of visuals here.*/ + + switch (glxVisualConfig) { + case GLX_MINIMAL_VISUALS: + addMinimalSet(pGlxScreen); + break; + case GLX_TYPICAL_VISUALS: + addTypicalSet(pGlxScreen); + break; + case GLX_ALL_VISUALS: + addFullSet(pGlxScreen); + break; + } + + dixSetPrivate(&pScreen->devPrivates, glxScreenPrivateKey, pGlxScreen); +} + +void __glXScreenDestroy(__GLXscreen *screen) +{ + xfree(screen->GLXvendor); + xfree(screen->GLXversion); + xfree(screen->GLXextensions); + xfree(screen->GLextensions); +} |